The new cast members join already announced Queen Latifah as the Wiz, Mary J. Blige as Evillene, the Wicked Witch of the West, David Alan Grier as the Cowardly Lion, and Stephanie Mills, as Auntie Em. Uzo Aduba will play Glinda, the Good Witch of the South, and Amber Riley will play Addaperle, the Good Witch of the North.